Abstract: A fingerprint sensor for a display device including: a substrate having first and second surfaces; a light transmission layer including a first layer disposed on the first surface of the substrate and having first openings in at least one first conductive layer, and a second layer disposed on the first surface of the substrate and having second openings in at least one second conductive layer; a light emitting element layer disposed on the first layer and the second layer and having at least one light emitting element; and a sensor layer disposed on the second surface of the substrate and having light sensors. At least a portion of the first openings and at least a portion of the second openings at least partially overlap and have different sizes.

Abstract: A display device including a plurality of pixels arranged in a matrix, a substrate, a first anode disposed on the substrate, and a plurality of opaque conductive layers disposed between the substrate and the first anode, in which the pixels include an opening pixel including a first anode arrangement region, a pinhole region located around the first anode arrangement region and surrounded by the first anode, and a first anode non-arrangement region including an exposed region located outside the first anode, and in a plan view, the opaque conductive layers completely cover the exposed region and at least partially expose the pinhole region.

Abstract: A fingerprint recognition device including: a sensing panel including a plurality of sensing blocks, wherein each of the sensing blocks includes a plurality of sensors; a scan driving unit configured to provide a scan signal to the sensors; and a timing controller configured to provide a second initiation signal to the scan driving unit, wherein each of the sensors includes a reference capacitor and a sensing capacitor, the scan driving unit includes scan drivers that correspond to rows of the sensing blocks, in a fingerprint recognition mode, the timing controller provides the second initiation signal to a scan driver corresponding to a sensing block where a touch input is generated, and in a touch mode, the timing controller sequentially provides the second initiation signal to the scan drivers.

Abstract: A display device including a substrate; a display element layer on the substrate, the display element layer including light emitting devices; a circuit element layer between the substrate and the display element layer, the circuit element layer including signal lines and light transmitting areas which are located between the signal lines in a plan view and allow light to be transmitted therethrough; a first light blocking layer between the substrate and the circuit element layer, the first light blocking layer including first openings; and a second light blocking layer on the first light blocking layer, the second light blocking layer including second openings. The second light blocking layer includes second sub-light blocking layers disposed to be spaced apart from each other, the second sub-light blocking layers each having the second openings. The first openings of the first light blocking layer overlaps with an area between the second sub-light blocking layers.

Abstract: A display device includes a fingerprint sensor including a first layer having at least one photo sensor to generate a fingerprint image corresponding to reflected light from a fingerprint contact surface, light emitting elements to transmit light reflected by the fingerprint, and a second layer including pin holes to allow reflected light to be incident upon the at least one photo sensor; and fingerprint detector to receive the fingerprint image from the fingerprint sensor, to extract a first image corresponding to a first region of the fingerprint and a second image corresponding to a second region of the fingerprint, to compare the first and second images to determine similarity, and to perform fingerprint authentication, based on similarity determination, where the fingerprint first region is in contact with the fingerprint contact surface and the fingerprint second region is not in contact with the fingerprint contact surface.

Abstract: A display device may include: a first substrate including pixel areas; a circuit element layer disposed on a first surface of the first substrate, and including at least one conductive layer; a light emitting element layer disposed on the circuit element layer; pixels each including a circuit element and a light emitting element disposed on the circuit element layer and the light emitting element layer in a corresponding one of the pixel areas; a first light transmitting hole array layer including first light transmitting holes distributed in the circuit element layer; and a photo sensor array layer disposed on a second surface of the first substrate and configured to overlap with the first light transmitting hole array layer, the photo sensor array layer comprising photo sensors. The first light transmitting holes may include openings distributed in the at least one conductive layer.

Abstract: A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.

Abstract: An image processing method and image processing device for performing the same are disclosed. In one aspect, the image processing method includes transmitting a content image having a visual condition to a display unit. The method also includes periodically changing the visual condition from a first visual condition to a second visual condition according to a modulation timing such that the content image to be displayed after the modulation timing has the second visual condition different from the first visual condition before commencement of the modulation timing.

Abstract: Disclosed are an organic light emitting diode display and a manufacturing method thereof, and more particularly, an organic light emitting diode display capable of minimizing resistance increase of a second electrode and improving light extraction efficiency at the same time by forming a separate reflector, and a manufacturing method thereof.

Abstract: An image processing method and image processing device for performing the same are disclosed. In one aspect, the image processing method includes transmitting a content image having a visual condition to a display unit. The method also includes periodically changing the visual condition from a first visual condition to a second visual condition according to a modulation timing such that the content image to be displayed after the modulation timing has the second visual condition different from the first visual condition before commencement of the modulation timing.

Abstract: An organic light emitting diode (OLED) display with an improved light efficiency and a method of manufacturing the OLED display are disclosed. The OLED display includes a substrate, an insulation layer on the substrate and having concave portions, first electrodes on the insulation layer, pixel defining layers (PDLs) on the insulation layer and configured to define the first electrodes into pixels, organic light emitting layers on the first electrodes as defined by the pixels, and a second electrode on the organic light emitting layers. Each of the concave portions includes a bottom surface and inclined parts. Each of the first electrodes is on the bottom surface and the inclined parts of one of the concave portions. Embossings are on a part of a surface of the PDLs.

Abstract: An organic light emitting display device may include a substrate having a switching device, a first electrode including a reflection structure and being electrically connected to the switching device, a pixel defining layer disposed on the first electrode to define a luminescent region and a nonluminescent region, an organic light emitting structure disposed over the pixel defining layer, and a second electrode disposed over the organic light emitting structure. The first electrode may include the reflection structure such as a recess structure or a protrusion structure, so that the organic light emitting display device may ensure an enhanced light efficiency. Additionally, pixels of the organic light emitting display device may have improved uniformity because an opening of the pixel defining layer may have a rounded shape.

Abstract: A display device and a driving method using four color pixels, a signal processor that converts three input image signals having gray levels to four output image signals that display four colors based on a look-up table without separate gamma conversion; and a data driver that generates a data voltage based on the output image signal and that supplies the data voltage to the pixels, thereby simplifying signal processing.